From: Seb Maynard <seb@seb.so>
Date: Thu, 24 Jan 2019 14:47:14 +0000
Subject: [PATCH] Make sure that when checking if a function is exported that
 the module in question is loaded by the code server


diff --git a/src/erlydtl_runtime.erl b/src/erlydtl_runtime.erl
index fad5872..e7efcc8 100644
--- a/src/erlydtl_runtime.erl
+++ b/src/erlydtl_runtime.erl
@@ -472,6 +472,7 @@ read_file(Module, Function, DocRoot, FileName, ReaderOptions) ->
             throw({read_file, AbsName, Reason})
     end.
 read_file_internal(Module, Function, FileName, ReaderOptions) ->
+    _ = code:ensure_loaded(Module),
     case erlang:function_exported(Module, Function,1) of
         true ->
             Module:Function(FileName);